code: def _validate_and_push(byod_image: str) -> None:
      """
      Validates the given image and pushes it to ECR.
      """
      docker_ray_commit = (
          subprocess.check_output(
              [
                  "docker",
                  "run",
                  "-ti",
                  "--entrypoint",
                  "python",
                  byod_image,
                  "-c",
                  "import ray; print(ray.__commit__)",
              ],
          )
          .decode("utf-8")
          .strip()
      )
      if os.environ.get("RAY_IMAGE_TAG"):
          logger.info(f"Ray commit from image: {docker_ray_commit}")
      else:
          expected_ray_commit = _get_ray_commit()
          assert (
              docker_ray_commit == expected_ray_commit
          ), f"Expected ray commit {expected_ray_commit}, found {docker_ray_commit}"
      logger.info(f"Pushing image to registry: {byod_image}")
      subprocess.check_call(
          ["docker", "push", byod_image],
          stdout=sys.stderr,
      )
  
file_path: ray/release/ray_release/byod/build.py
imports: from typing import List, Optional, Dict
  import boto3
  import hashlib
  import os
  import subprocess
  import sys
  import time
  from ray_release.config import RELEASE_PACKAGE_DIR
  from ray_release.configs.global_config import get_global_config
  from ray_release.logger import logger
  from ray_release.test import Test, DATAPLANE_ECR_REPO, DATAPLANE_ECR_ML_REPO
label_desc: Use image node_id 4 for calling a global function with example usage: _validate_and_push(byod_image) without return types